Health

A serological test research done for Sheba Hospital staff who received the Pfizer vaccine revealed a significant decrease in their share of blood antibody levels, a few months after receiving the second vaccine. It is now being investigated whether other measures in the blood may indicate that the vaccines are still efficient. The research team led by Professor Gili Regev-Yohai is examining whether the effectiveness of the vaccine is declining. The hospital said "we are not sure this decline has any significance". One of the study participants reported that two weeks after the second...